Electrically-operated pump



1929- A. N. l RBY 1,730,075

ELECTRICALLY OPERATED PUMP Filed Sept. 11, 1928 2 Sheets-Sheet 1 v G'r Inventor Alfred N [136 y Attornqy Oct. 1, 1929. A. N. IRBY 1,

I ELECTRICAL-LY OPERATED rum Filed Sept. 11, 1928 2 Sheets-Sheet 2 Inventor Alfred 1V. Irby Attorney Patented Oct. 1, 1929 S T f.

ALFRED I\T. IR-BY, F VALENTINE, TEXAS ELEGTR-ICALLY-OPERATED PllMP Application filed September 11, 1928. Serial No. 305,250.

1 The present invention pertains to new and useful improvements in pumps and has a more particular reference to an electrically operated pump mechanism including a novel coin controlling feature.

The purpose of the invention is to dispense with the necessity of employing a number of assistants at gasoline stations, by adopting the present self-serving type of pump.

The prime object of the invention is to provide a novel coin control operable for making or breaking a circuit with the electrical pump motor, whereby upon the insertion of a coin, the circuit will be completed for energizing the motor and causing the pump to discharge into the usual transparent compartment a quantity of fluid of a predetermined volume.

Another important object of the invention resides in means whereby the volume of fluid may be controlled.

Still another object of the invention resides in novel fioat means operable within the receiving compartment and operable at a predetermined certain elevation for opening the electrical circuit to the pump motor.

A further object of the invention resides specifically in the coin control means'whereby the coin serves as a connector for maintaining the pump motor circuit closed until a predetermined volume of fluid has been discharged into the receiving chamber.

Still a further object of the invention resides in the connection between the float means and the coin control mechanism as well as adjustment therein for regulating the level at which the float is adapted to displace the coin for opening the electrical pump motor.

After reading the following specification and claims, other important objects and advantages of the invention will become apparent.

In the drawings:

Figure 1 represents a vertical sectional view through a fragmentary portion of a conventional pump housing and disclosing the novel structure embodied in the present invention.

Figure 2 is a side elevation in partial sectional view, disclosing the invent-ion in its entirety. I

Figure 3 represents a fragmentary end elevation of the mechanism embodied in the present invention.

Figure 4 is an enlarged fragmentary and partial sectional view of the coin chute, and

Figure 5 is a diagrammatic view of the wiring connection between the circuit closing means of the coin chute and the electric pump motor.

Referring to the drawings, wherein like numerals designate like parts, a conventional hollow pump housing A is formed with the usual shoulder B, at its upper end, upon which a cover plate C is supported. A trans- 1 parent tubular portion'D is supported upon the plate C in upstanding position and has its upper end closed in the usual manner by a domeE.

The interior of the tubular body D serves as a receiving chamber for gasoline dischargedfrom the supply pipe F, which projects upwardly through the plate C. An electric motor (not shown in the drawings) is employed foroperating a ratchet G, which, in turn, by means of a chain H, operates a ratchet J, for operating a pump, (also not shown in the drawings) The pump, as well as the motor, are conventional mechanisms U employed for forcing the gasoline through the supply pipe F.

' In carrying outthe'present inventionthere is provided an inclined coin chute 1, having one end bevelled and opening through the wall of the housing A. The lower internal end of the chute is opened and has a receptacle 2, hingedly connected to the upper edge thereof. This receptacle is of substantially rectangular shape and is of substantially the same width as the chute 1. One end of the receptacle is open and is adapted to abut the open depending end of the chute 1, so that the same will assume an aligned position with the chute when in gravitated position. 1

The receptacle has one corner cut away to form an opening 3, whereby foreign material may discharge.

Secured to the inner side of the receptacle 2, and at, opposite sides of the opening 3, are

contacts at and 5 respectively properly insulated from the receptacle and provided with binding posts 6, projecting exteriorly thereof. Suitable conductor wires 7 connect with the motor diagrammatically shown in F igure' 5. A protuberance 8 is provided at one side of the receptacle 2.

A pedestal 9 is supportedupon a suitablebracket 10 Within the pump hous n A and has a rocker arm 11 mounted thereon. One end portion of the rocker arm 11 is adapted to engage under the protuberance 8, while its opposite end is pivotally connected to an on the tube 14 and is provided with a laterally projecting arm 18. A connecting rod 19 has its opposite ends'connected respectively to the opposite end of the rocker arm 15 and the float arm 18.

A turn buckle 20 is interposed in the rod 12 for the purpose of adjusting the length thereof.

In the operation of the present invention, by inserting a coin, which is designated in the drawings by F into the chute 1, the same will come to rest Within the receptacle 2 and in contact with the contacts l and respectively. In this manner, the coin serves as a connector bridging the contacts and closing the proper motor circuit.

I The operation of-the motor will result in the pumping of fluid through the supply pipe F and into the receiving chamber at the top of the pump housing. As the level oi the fluid begins to rise within the transparent tubular body I), the float 17 will be gradually lifted. The lifting of the float will result in the depressing of the rod 12 and the conse quential upward movement of the free end of the rocker arm 11. This movement of the rocker arm which is normally in engagement with the protuberance, causes the lifting of the receptacle 2. When the float 17 has reached a predetermined level, the free end of the rocker arm 11 will have reached a position such as is designated by dottedlines in Figure 2 of the drawings. In this position, the coin X will begin to roll outwardly of the receptacle, thus breaking the motor circuit and discharging the coin into a suitable receptacle located at a convenient point below the chute. I

The fluid may then be discharged from the receiving chamber, whereupon the lowering of the float 17 will result in the regaining of the receptacle position shown by full lines in Figure 2.

It may be desirable that the chute 1 and receptacle 2 be constructed of some insulating material to reduce the possibility of short circuit between the contacts 4' and 5 respectively. It is also to be understood that certain changes in the specific shape, size, and materials may be resorted to, without departing from the spirit of the invention or the scope of the appended claims.

Having described the invention, what is claimed as new is:

1. In a coin control mechanism for pumps employing electrical pumping devices, a coin chute open at its opposite ends, acoin receiver hinged to the lower end of the chute, contacts arranged within the receiver and adapted to be bridged by a coin deposited in the chute for-closing a circuit to the electrical pumping device, and float operable means for moving said receptacle to break said circuit when a predetermined volume of fluid has been discharged into the usual fluid receiving chamber.

2. In a coin control mechanism for pumps employing electrical pumping devices, a coin chute open at its opposite ends, a coin receiver hinged to the lower end of the chute, contacts arranged within the receiver and adapted to be bridged by a coin deposited in the chute for closing a-circuit to the electrical pumping device, and means for breaking said circuit when a predetermined volume of fluid has been discharged into the usual fluid receiving chamber, said means consisting of a float operable within the fluid receiving chamber, a rocker arm, one end of the rocker arm having connection with the fluid while the opposite end is adapted to engage the coin receiver to tilt the same andcause the displacement of the coin when the float reaches a predetermined level. I

In testimony whereof I atfixmy signature.

ALFRED N. IRBY. 

